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PATENTED .FEB. 16, 1904. T. o. DEXTER. V SHEET CONVEYING MACHINEAPPLICATION FILED 001225, 1902.

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.No. 752,380. PATENTED FEB.16,1904. T. 0. DEXTER.

SHEET CONVEYING MACHINE. APPLIUATION FILED 00 25, 1902.

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No. 752,380. PATENTED FEB. 16, 1904.

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SHEET CONVEYING MACHINE. APPLIUATIUN FILED 011125, 1902.

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, chines,of which thefollowing isa specification. The present inventionrelates to improve Patented February 16, 1904;. I

PATENT OFFICE.

TALBOT o. DEXTER, or PEARL RIVER, NEW YORK.

SHEET-CONVEYING MACHINE;

SPECIFICATION forming part of Letters Patent No. 752,380, dated February16, T904. Application filed October 25, 1902. Serial No. 128,711. (Nomodel.)

To all whom it may concern/.-

citizen of the United States, residing at Pearl River, in the county ofRockland and State of New York, have invented certain new and usefulImprovements in Sheet-Conveying Maments in the sheet-feeding mechanismfor conveying successlve sheets of paper from an automatic paper-feedingmachlne to a printingpress, folding machine, ruling machine, or

other machine designed to operate upon sheets of paper.

The object of my invention is to provide an .improved construction ofsuch sheet-conveying mechanism which can readily be adjusted to suitdifierent sizes of sheets which are to be fed to the press or othermachine and which has means for regulating the propellingforce of theconveyer-tapes upon the sheet for carrying the successive sheets intoregistered position againstthe front guides of the press or othermachine with just suflicient force to insure the proper registry of thesheets,so as to avoid the rebounding of the sheets from the front guidesor the injury of the leading edge of the sheet. In accomplishing theseobjects I provide a plurality of sets of sheetconveying tapes which .arearranged to actupon the sheets successively 1n carrymg themfrom thefeeding-machine to the front guides of the press or other machine. Oneset of the conveyingtapes which receives the sheets from thefeeding-machine is arranged above the plane of another set ofconveying-tapes which delivers the sheets to the printing-press,

and a third or intermediate set of conveyingtapes is arranged to operatein the plane of the receiving or feeding machine tapes and interlapswith said receiving-tapes and is adjustable in the plane of feed withrelation to the delivery-tapes. These receiving and intermediate sets oftapes being in a higher plane than the delivery-tapes afiord a drop fromthe delivery-roller of the intermediate tapes to the carrying portion ofthe deliverytapes for the purpose of allowing each sheet to partiallyoverlap the one which precedes it to facilitate rapid feeding. When asheet is in registered position against the front gages, it rests uponthe delivery-tapes with its rear edge a little in advance of thedelivery-roller of the intermediate tapes. By adjusting the intermediateset of tapes in the plane of feed its delivery end is brought nearer toor farther away from the front gages of the press, and

'therebyenables the operator to expose a larger or smaller part of thedelivery-tapes to accomdate the machine to any size of sheets.

To regulate the propelling force of the delivery set of tapes in movingthe sheets into registered position against the front gages of thepress, I provide a series of friction plates or bars, which areextensible in the direction of feed and are adjustable to cause them toproject more or less above the surface of the carrying portion of thedelivery-tapes to relieve the sheets of more or less of the propellingforce of said tapes.

In order that my invention may be more fully understood, I willfirstdescribe the same with reference to the accompanying drawings andafterward point out the novelty more par: ticularly in the annexedclaims.

Figure 1 is a detail sideelevation of my improved sheet feeding orconveying mechanism. Fig. 2 is a detail elevation, partlybroken away,illustrating the means for adjusting the inner tape-rollers of thereceiving and delivery sets of tapes. Fig. 3 is a plan view of mysheet-conveying mechanism. Figs. 4 and 5 are detail longitudinalsectional views illustrating the means for regulating the propellingforce of the delivery-tapes upon the sheets. Fig. 6 is a detail planview of the same.

1 represents the impression-cylinder, 2 the front gage, 3 an underguide, and a the feedboard, of a printing-press.

orepresents part of the frame of an automatic paper-feeding machine.

-6 is the feeding-machine tape-roller, driven by a part of thefeeding-machine in amanner well understood.

10 represents the side bars ofthe frame which supports thesheet-conveying mechanism which carries the successive sheets from thefeeding-machine to the printing-press or other machine. These bars 10are pivotally mounted upon the feeding-machine frame at 11 or bars 14,which form an incline leading from thedlivery-tapes to the gage end ofthe feedboard.

15 indicates one of a pair of adjustable brackets or carriages which aremounted upon the side bars and are provided with setscrews 16 forclamping them in the desired adjusted position upon the side bars.Freely journaled in these brackets or carriages and extending from sideto side of the machine is a tape-roller 17. The receiving conveyer-tapes-18 pass around the feeder tape-roller6 and the inner adjustabletape-roller 17.

20 is one of another pair of brackets or carriages adj ustably mountedupon the side bars 10 of the supporting-frame, said brackets orcarriages 20 having rotatable pinions 21, which 'mesh with therack-teeth 22, formed on the side bars 10. These brackets or carriages20 have freely journaled in them and extending from side to side. of themachine a tape-roller 25. A delivery-tape roller 26 is freely journaledin the brackets 12 and extends from side to side of the machine. Thedelivery conveyer-tapes 27 are supported upon the tape-rollers and 26,the upper or carrying portion of the tapes 27 being arranged in a lowerplane than the upper or carrying portion of the tapes 18 and theintermediate tapes presently to be described.

The adjustments of brackets or carriages 15 and 20 are for the purposeof maintaining. taut the conveyer-tapes 18 and 27 In addi: tion to theseadjustments I prefer to provide connecting rods or bars 30, which restin sockets 31 and 32 of the brackets or carriages 15 and 20 and areengaged by set-screws 33 and 34 upon said carriages. these adjustableconnections I securely lock the carriages 15 and 20 in the desiredadjusted position and am enabled to more readily effect the tighteningand loosening of the tapes 18 and 27 An intermediate and adjustable setof conveyer-tapes is provided for transferring sheets from thereceiving-tapes 18 to the deliverytapes 27. These intermediate tapes 35are supported upon tape-rollers 36 and 37, which are freely journaled,respectively, in adjustable brackets or carriages 38 39. These bracketsorcarriages 38 and 39 are mounted .upon the side bars 10 of theconveyer-frame, the set-screws 40 being threaded into carriages 38 toengage the side bars 10 for holding said carriages in the desiredadjusted position, and connecting-bars 41 being pivotally mounted uponears 42 of carriages 39 and ad- By means of r justably held in sockets43 by set-screws 44 on carriages 38. By adjusting connectingrods 41 thetape-rollers 36 and 37 can be moved toward or away from each other fortightening or loosening the intermediate tapes 35. By .theadjusting-screw 40 both sets of carriages 38 and 39 can be adjusted uponthe side bars for adjusting the intermediate tapes 35in the plane offeed with relation to the delivery-tapes 27 and front gages of the pressor other machine.

The tape-roller 36 is driven by a band or tape 50, passing aroundroller36, roller 6, in-

termediate pulleys 51 52, and belt-tightening pulley 53, carrying theweight 54. The delivery-tapes 27 are driven by a band or tape 55, whichpasses from feed machine roller 6 around the delivery-tape roller 26.

Friction-rollers 60, journaled in pivoted arms 61, mounted on rock-arm62, extending from anadjustable rock-shaft 63, .which is supported inbracket-arms 64, extending up from the side bars 10, are arranged abovethe delivery-tape roller 37 of the intermediate tapes to confine thesheets as they pass from the intermediate tapes to the delivery-tapes.By adjusting the shaft 63 thefriction-rollers may be moved forwardly orbackwardly upon the tape-roller 37'to cause the leading edge of thesheets to be deflected more or less toward the delivery-tapes. 1

Supported between the individual tapes of the delivery-tape mechanismare the adjustable and extensible frictional plates or bars forregulating the propelling force of the delivery-tapes upon the sheets.These plates or bars are preferably made flat, of springy sheet metal,as shown, and to enable them to be extended or contracted in thedirection of feed they are made in sections. Each frictional plate orbar consists of a plate-section 65, mounted at its end upon a rod 66,supported in the brackets 12 and formed with a longitudinal slot 67, inwhich engages a screw 68, threaded into the second plate-section 69,which is mounted at its end upon a rod 70, supported in the adjustablebrackets 'or carriages 39 of the intermediate-tape mechanism. De-

pending from each plate-section 65 is a lug 71, in which is mounted 'arod 72, connected through links 7 2 with two or more rock-arms 73,mounted on a rock-shaft 74, journaled in brackets 75, supported on theside bars 10. This shaft 74 is adjusted in its supportingbrackets in anysuitable manner, so as to adjust the amount of projection of frictionalplates 69 65 above, the delivery-tapes 27. I have shown the shaft 74with a squared end 7 6 for the engagement of a wrench and a setscrew 77,threaded into one of the brackets 75 and engaging the shaft 7 4, forholding it in the desired adjusted position.

, Sheets fed from the feeding-machine are carried by the receiving-tapes18 and deposited upon the intermediate tapes 35, which in IIO turndeposit them upon the delivery-tapes 27, i

which carry them forward into gaged position. The intermediate tapes 35interlap or are telescoped with the receiving-tapes 18, so as to allowfor the adjustment of the intermediate tapes with relation to thedelivery-tapes.

f As the tape-roller 3'7 of the intermediatetapes is in a higher planethan the tape-rollers and 26 of the delivery-tapes, it will be observedthat there is a drop or depression between the intermediate tapes andthe carrying portion of the delivery-tapes, so as to allow the leadingedge of each sheet to pass freely over the rear edge of the sheet whichhas preceded it.

:This is for the purpose of allowing ample time for side registering thesuccessive sheets .and

sheets to the front gages with just sufficient force to insure properregistry and with not enough force to cause the rebounding of the sheetor the injury of its-leading edge. will be observed that the adjustmentof the I intermediate'tapes in the direction of feed'causes'thefrictional plates 69 to be ex-: tended or shortened to suitthe adjusted.posi.

tion of the intermediate tapes, the connection between plate-sections 69and the brackets or carriages 39 automatically effecting thisadjustment.-

For tightening or loosening the sheet-carrying tapes 18 and 27 the inneradjustable brackets or carriages 15 and 20 are adjusted in the followingmanner: If the tapes 18 need tightening or loosening, the set-screws 16are loosened up and the pinion 21 operated for moving carriages 20 andconnected carriages 15 in the desired direction. After the tapes 18 havebeen adjusted properly set-screws 16" are again screwed into engagingposition, and the set-screws 33 or 3 L areloosened to enable the pinions21 to be again operated for placing the carriages '20 in the desiredadjusted position-for properly tightening or loosening thetapes 27. 5

screws 33 or 34 are again tightened.-

Having thus described my invention, the

' following is what I claim as new therein and. I desire to secure byLetters Patent: c 1. In a sheet-conveyer, the combination of a setofdelivery sheet-carrying tapes, with a second set of sheet-carryingtapes adapted to convey sheets to'the delivery-tapes and arranged withits delivery end above the carr ing portion of said delivery-tapes toafford a drop from said second set of tapes to the deliverytapes, andmeans for adjusting said second set of tapes in the plane of feed withrelation to the delivery-tapes, substantially as and for the purpose setforth.

2. In a sheet-conveyer, the combination of After this adjustment theseta delivery set of sheet-carrying tapes, and gages for registeringsheets upon said delivery-tapes, with a second set of sheet-carryingtapes adapted to convey sheets to the delivery-tapes and arranged withits delivery end above the carrying portion of the deliverytapes,andmeans for adjusting said second set of tapes toward and away from saidgages, substantially as set forth.

3'. The combination of the receiving sheetcarrying tapes, the deliverysheet-carrying tapes, the intermediate sheet-carrying tapes arranged totake sheets from the receivingtapes. and deposit them uponthe-deliverytapes, said delivery-tapes being arranged in a lower feedingplane than the receiving and intermediate tapes for the purpose ofaffording'a drop from the intermediate tapes to the delivery-tapes, andmeans for adjusting said intermediate tapes in the plane of feed withrelation to the delivery-tapes for exposing more or less of the,carrying portion of the latter, substantially as set forth.

4:- The combination of the delivery sheetcarrying tapes, and theirsupporting-rollers, the receiving sheet-carrying tapes, and theirsupporting-rollers, the intermediate sheetcarrying tapes, and theirsupporting-rollers, the delivery roller of the intermediate tapes beingarranged above the carrying portion of the delivery-tapes to afford adrop from. the intermediate tapes to the delivery-tapes, and means foradjusting said intermediate tapes in the plane of feed with relation tothe delivery tapes for'exposing more'or lessof the carrying portion ofthe latter, substantially as and for the purpose set forth.

5. The combination of the delivery sheetcarrying tapes, the receivingsheet-carrying tapes, and intermediate sheet-carrying tapes, saidreceiving and intermediatetapes being interlapped with each other, andsaid delivery-tapes being in a lower feeding plane than the receivingand intermediate tapes, and overlapped by the intermediate tapes, andmeans for adjusting the intermediate tapes in the plane of feed withrelation to the deliverytapes, substantially as set forth.

overlapping the carrying portion of said delivery-tapes, and means foradjusting said intermediate tapes in the plane of feed toward andaway'from said gages for exposing more or less of the carrying portionof the delivery-tapes, substantially as and for the purpose set forth. a

7. In a sheet-conveyer, the combination of IIO the delivery-tapes andtheir supporting-rollers, the receiving-tapes and theirsupportingrollers, the supportingframe-bars 10, the adjustable bracketsor carriages 15, 20, mounted upon said bars 10, and supporting the innertape-rollers of the delivery or receiving tapes, connecting-rods 30adjustably connecting the carriages and 20, means for clamping carriages15 upon bars 10, and means for moving the carriages upon said bars 10,substantially as set forth.

8. In a sheet-conveyer, the combination of the delivery-tapes 27supported by stationary tape-roller 26 and adjustable tape-roller 25,the receiving-tapes 18 supported by stationary roller 6 and adjustableroller 17 the supporting-bars 10, the brackets or carriages 2Oadjustably moun ted upon bars 10 and supporting the tape-roller 25,pinions 21 mounted in carriages 20 and engaging rack-teeth 22 upon bars10, connecting-rods 30, set-screws 31 upon carriages 2O engagingconnecting-bars 30, brackets or carriages 15 adjustably mounted upon thebars 10 and supporting the taperoller 17 set-screws l6 securingcarriages 15 in the desired adjusted position, and set-screws 33 uponcarriages l5 engaging the connectingrods 30, substantially as set forth.

9. In a sheet-conveyer, the combination of a set of sheet-carryingtapes, with extensible friction plates or bars arranged between saidtapes and adapted to project above the carrying portion of said tapes,with adjustable carriages to which said extensible frictionplates areconnected and by which they are adjusted, substantially as set forth.

10. In a sheet-conveyer, the combination of a set of sheet-carryingtapes, with extensible friction plates or bars arranged between saidtapes, each friction plate or bar comprising a section connected to astationary part of the machine and formed with a longitudinal slot 67,and a section 69 carrying a screw 68 which operates in said slot 67 andan adjustable carriage to which said sections 69 are connected,substantially as set forth.

11. In a sheet-conveyer, the combination of a set of sheet-carryingtapes with extensible friction plates or bars formed of springy sheetmetal and supported at their ends between the said tapes, and adjustablemeans connected with said friction plates or bars and adapted to projectthem more or less above the carrying portion of said tapes,substantially as set forth.

12. In a sheet-conveyer, the combination of a delivery set ofsheet-carrying tapes, a second set of sheet-carrying tapes overlappingsaid delivery-tapes, and means for adjusting said second set of tapes inthe plane of feed with relation to the delivery-tapes for exposing moreor less of the carrying portion of said tion plates or bars supported attheir ends and adapted to be bowed upwardly between said tapes toproject above thecarrying portion of the tapes, substantially as setforth.

14. In a sheet-conveyer, the combination of a set of sheet-carryingtapes, with a series of elastic friction plates or bars arranged betweenthe tapes and supported at their ends, and adjustable means engagingsaid frictionplates from beneath at points between their ends andadapted to bow said plates upwardly to cause them to project more orless above the carrying portion of said plates, substantially as setforth.

15. In a sheet-conveyer, the combination of a set of sheet-carryingtapes, with a series of friction plates or bars supported between saidtapes at their ends, an adjustable shaft, means for securing said shaftin the desired adjusted position, and connections between said shaft andsaid friction plates or bars, whereby said plates or bars may beprojected more or less above the carrying portion of said tapes,substantially as set forth.

16. The combination of a delivery set of sheet-carrying tapes and asecond set of sheetcarrying tapes arranged to convey sheets to thedelivery-tapes, with extensible friction plates or bars arranged betweenthe deliverytapes and adapted to project above the carrying portion ofsaid tapes, with means for simultaneously adjusting said second set oftapes and extending or contracting said friction plates or bars,substantially as set forth.

17. The combination of a delivery set of carrying-tapes and theirsupporting tape-rollers, a second set of sheet-carrying tapes adapted toconvey sheets to the delivery-tapes, taperollers supporting said secondset of tapes, ad-

tape-rollers of said second set of tapes whereby said second set oftapes may be adjusted with relation to the delivery-tapes for exposingmore or less of the carrying portion of said delivery-tapes, andextensible friction plates or bars arranged between the deliverytapesand connected at one end with a stationary part of the machine and atthe opposite end with one of the adjustable carriages of said second setof tapes, substantially as and for the purpose set forth.

TALBOT C. DEXTER.

Witnesses:

J. GREEN, WM. E. KNIGHT.

' justable brackets or carriages supporting the

